A NOTE ON MAGNUS FORMULA

Authors
PRATO D LAMBERTI PW
Citation
D. Prato et Pw. Lamberti, A NOTE ON MAGNUS FORMULA, The Journal of chemical physics, 106(11), 1997, pp. 4640-4643
Citations number
13
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
The Journal of chemical physics → ACNP
ISSN journal
00219606
Volume
106
Issue
11
Year of publication
1997
Pages
4640 - 4643
Database
ISI
SICI code
0021-9606(1997)106:11<4640:ANOMF>2.0.ZU;2-C
Abstract
In this paper we reanalyze the Magnus formula for the time evolution o perator in quantum mechanics from an algorithmic point of view. We giv e some rules to obtain the general term in the expansion as a compact time-ordered integral. These rules are easily applied to higher orders ; in particular, we give explicitly the fifth order. (C) 1997 American Institute of Physics.